<template>
    <div class="login_container">
        <div class="login-box">
            <div class="logo">
                <img src="../assets/logo.png" alt="">
            </div>
            <el-form ref="loginForm" label-width="0px" :rules="loginRules" :model="loginForm" class="login_form">
                <el-form-item prop="username">
                    <el-input  v-model="loginForm.username" prefix-icon="el-icon-user-solid"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password"  show-password prefix-icon="el-icon-s-goods"></el-input>
                </el-form-item>
                 <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="reset">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data: function(){
        return {
            loginForm:{
                username:"",
                password:""
            },
            loginRules: {
                username: [
                    { required: true, message: '请输入用户名称', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur' }
                ],
            },            
        }
    },
    methods: {
        reset() {
            this.$refs.loginForm.resetFields();
        },
        login() {
            this.$refs.loginForm.validate(async flag=>{
                if(flag){
                    //验证通过
                   const {data: res} = await this.$http.post('login',this.loginForm);
                   if(res.meta.status == 200){
                       //存储token
                        window.sessionStorage.setItem("token",res.data.token);
                        this.$message({
                            message: res.data.username+'登录成功',
                            type: 'success'
                        });
                        //跳转
                        setTimeout(()=>{
                            this.$router.push("/home")
                        },1000);
                   }else{
                        this.$message({
                            message: res.meta.msg,
                            type: 'error'
                        });
                   }
                }
            });
        }
    }
}
</script>

<style lang="less" scoped>
    .login_container {
        background-color: #2b4b6b;
        height: 100%;
    }
    .login-box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
    }
    .logo {
        width: 130px;
        height: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #eee;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
    .btns {
        display: flex;
        justify-content: flex-end;
    }
    .login_form {
        position: absolute;
        width: 100%;
        bottom: 0;
        padding: 0 20px;
        box-sizing: border-box;
    }
</style>